Composite waterproof shingle.



O. S. BIRD. COMPOSITE WATERPROOF SHINGLE. APPLICATION FILED FEB.5, 1913.

Patented Sept. 1, 1914:.

ZQL' 5166605 I fizucrcfor; Charles S. B1713,

CHARLES S. BIRI), 0F WALPOLE, MASSACHUSETTS.

COMPOSITE WATERPROOF SHIN GLE.

Specification of Letters Patent.

Patented Sept. it, 1914.

Application filed February 5, 1913. Serial N 0. 746,355.

construction and advantages of which will be hereinafter set forth, reference being had to the annexed drawings, wherein:

Figure 1 is a perspective view of several of the shingles produced accordingto my invention laid up; Fig. 2 is a perspective view of the under side of a shingle, the parts being broken away; and Fig. 3 a similar view showing the parts partially separated.

The object of the present invention is to produce a paper shingle having a butt materially thicker than the opposite end thereof, the butt presenting an unbroken surface and being of a thickness sufficient to form the shadow effect which is essential to a commercial article.

The shingle may be said to comprise two sheets, an outer and an inner one, the outer sheet being materially longerthan the inner and comprising the main body 1 and an underlying portion 2, while the inner sheet comprises an upper section 3 and a relatively short butt section 4. Both sheets, as will be noted, are folded upon themselves and at the butt there are four thicknesses'of material, while throughout the lower por tion of the shingle there are three thicknesses, a single thickness being present at the upper portion of the shingle.

The various parts of the shingle will be formed of suitable waterproof paper or similar material, and will be secured together under pressure by a suitable cementitious substance, which is preferably water-repellant in its nature.

While the members 2 and 3 have been shown of the same length, it will be readily appreciated that they may be made of different lengths so as to produce a shingle which will taper more gradually from the upper to the butt end thereof.

As will be noted upon reference more particularly to Fig. 1, the butt endof the shingle presents no open seams or joints and consequently water cannot enter between the layers thereof which, of course, if the water did enter, would cause the layers to separate in freezing weather. Moreover, the

layers cannot separate under the action of the sun and the shingle is sufficiently thick and rigid at the butt end to prevent the wind from lifting the shingle,. and consequently displacing the same. Again, the thickened end produces a shadow upon the roof, which quality is essential to a commercial article, and which is present in a roof made up of the ordinary wooden shingles.

The construction is at once simple and yet effective, and is superior to paper shingles which have hitherto been suggested, wherein the shingle is made up of a series of superposed sheets of paper, presenting at the outer end various joints or seams, which joints or seams are objectionable in that they open up under the stress of weather.

Having thus described my invention,what.

I claim is:

1. As a new article of manufacture, a shingle composed of two sheets of waterproof material folded upon themselves, one sheet being nested within the folds of the other, and one section of the inner member being relatively short and present only at the butt end of the shingle.

2. As a new article of manufacture, a shingle composed of two plies of waterproof paper, the outer face presenting a surface of a length equal to the length of the shingle and the under surface extending throughout the major portion of the length of the shingle upon the under surface thereof, and the second sheet lying between the members of the first sheet, said second sheet being likewise folded upon itself, one section of said second sheet being relatively narrow and present only at the butt end of the.

shingle.

In testimony whereof I have signed my name to thisspecification in the presence of two subscribing witnesses.

. CHARLES S. BIRD.

Witnesses: 4

M. M. Rimes, W. M. PAINE. 

